US502975A - Bridge-gate - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1..-

A. KOHLER'Q I BRIDGE GATE.

No. 502,975. I Y Patented Aug. 8, 1893.

2 Sheets-Sheet 2.

( No Model.)

A.-KOHLER. BRIDGE GATE.

Patented Aug. 8, 1.893.

' Us'r rrno- STATES" PATENT meet AUGUST KOHLER, OF CHICAGO, ILLINOIS.

BRIDGE-GATE.

SPECIFICATION forming part of iLetters Patent No. 502,97 5, dated August 8, 1893.

Application filed May 19, 1893 Serial No. 474,755- (No model.) i

To all whom/it may concern.-

Be it known that I, AUGUST KOHLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois; have invented certain new and useful Im provements in Bridge-Gates, of which the fol; lowing is a specification.

This invention relates to improvements in, bridge-gates, and especially to that class of gates, which are automatically raised and. lowered by the turning of the bridge; and it consists in certain peculiarities of the con struction, novel arrangement, and operation of the various parts thereof, aswill be hereinafter more fully set forth and specifically claimed.

The objects of my invention are first, to provide a gate, which shall be automatic in its operation, simple and inexpensive in construction, and may be easily attached to draw or turn-bridges of the ordinary construction; and second, such a gate in which the arms or uprights constituting the gate-obstruction, are automatically raised when the bridge isin position for traffic, and lowered when itis turned or closed in a position to allow the passage of vessels in the river or to prevent travel.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which Figure 1, is a plan view of a bridge and a portion of the abutments or approaches thereof, with a part of one of said abutments broken away, in order to show'the operating mechanism of one of the gates. Fig. 2, is a longitudinal sectional view of the bridge anda portion of the abutments, showing my gates in a raised position. Fig. 3, is a plan view of a portion of one of the abutments, showing the gate-armsin section, their box, or casing, and the ratchet-gear. Fig; 4, is a sectional view of a portion of the bridge and one of the abutments, showing a portion of the gatearms and their operating mechanism. Fig. 5, is a face view of the supporting brackets or standards for the gate-arms, their operating levers and mechanism. Fig. 6, is a rear view thereof. Fig.7,is a sectional view of the camgears or eccentric wheels for operating thelevers of the gate-arms. Fig. 8, is a perspective view of the right and left ratchet-gear detached from its shaft. Fig. 9, is a perspective view of one of the right and left ratchetpieces,orbars,detached from the bridge, and Fig. 10, is a face view of portions of one of the gate-arms and its operating lever.

Similar letters refer to like parts throughout the different views of the drawings.

' in Figs. 2 and 3, are formed with a step b, or recess. Between the rollers a, and the ends of the bridge, and on the lower surface thereof, and transversely therewith, is secureda right and left ratchet-piece O, which piece is adapted to engage with the right and left ratchet-gear G, which is mounted on a suitable shaft D, hav

ing its bearing for one end, in a journal-box d, located in the abutment, and the bearing for its other portion in the supporting brackets E, for the gate-arms F, and their levers. The brackets or supporting standards E, for the gate-arms, are firmly secured to the abutment, at their lower portions, and are covered at their upper parts by means of a casing or box E, which is provided in its top with suitable slots or openings 6, through which the gate-arms extend and operate.

As is clearly shown in Fig. 4, of the drawings, the standards or brackets E, extend to near the top of the casing E, and have socured between them on a suitable shaft e, having its bearings in the upper part of said standards, the gate-arms F, which are preferably in the form of bars, and are provided on their lower ends with segmental cogged-gears F, which mesh with correspondingly formed gears g, on the upper ends of the operating levers'G, which are fulcrumed at asuitable point to the supporting standards E, as is clearly shown in Figs. 4, 5, and 6. The lower portion of each of these levers is provided with longitudinal slots g, within which fit and operate suitable pins or projections h,

and h, on the operating or eccentric Wheels H, and H, the former of which is mounted on the opposite end of the shaft D, from the ratchet-gear. The wheel H, is eccentrically secured to the wheel H, by means of the pin or projection h, which not only serves for this purpose, but also as an engaging connection for the slot in one of the levers G, which is located between said wheels, while the other lever through its slot, engages with the pin 72,, on the outer surface of the wheel H. It will therefore be understood, that when the bridge is in its normal position, or open for traific, as shown in Fig. 1, that the gate-arms will stand in an upright position, and hence will offer no obstruction, but that as soon as the bridge begins to move in either direction in the turning thereof, the ratchet pieces or bars 0, will engage the ratchet-gears O, which are located on the abutments, as before stated, and will cause the same to revolve, which operation will also turn the wheel H, which is fixed on the shaftD', and through the latters rigid connection h, with the wheel H, and their connections with the levers, to raise and lower the same, thereby raising and lowering the gate-arms.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a bridge-gate, the combination of a bridge having at each end a right and left ratchet-piece or bar, with a right and left ratchet-gear to engage said pieces or bars, said gear being mounted on ashaft having its hearings on the abutment, the gate-arms having at their lower ends segmental gears and pivotally secured to a support or frame, the operating levers fulcrumed on said frame and having at their upper portions segmental gears to engage the gears on the gate-arms, and in their lower portions longitudinal slots, and the operating wheels H, and 11', having the pins or projections to engage the slots in said levers, substantially as described.

2. In a bridge-gate, the combination with the gate-arms F, having the segmental gears F, and pivotally secured at their lower ends to a support, of the levers G, having the segmental gears g, to engage the gears on the gate-arms, the wheels H, and H, eccentrically connected to said levers, and adapted to give them a reciprocating motion, and having means to engage the bridge in its movements, substantially as described.

AUGUST KO IILER.

W i to esses:

CHAS. C. TILLMAN, G. A. Due GAN.

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